Toshiba laptop Touchpad not working

We have a Toshiba Satellite c665d-s5136 and the touch pad has quite working. We do use a wireless mouse most of the time but do use the touch pad quite often. I have tried the FN + F9 to enable the touch pad but it did not help. Any idea as to why it is not working since the computer is only about 6 months old?

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